SF14G-AP Equivalent & Substitute Parts

Part Overview

The SF14G-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This diode is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified when identical electrical performance parameters and mechanical compatibility are maintained across different manufacturers or packaging formats, enabling procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	200 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 200 V
Package / Case	DO-204AL, DO-41, Axial
Mounting Type	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SF14G-AP are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 950 mV @ 1 A
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 5 µA @ 200 V
Operating Temperature - Junction: -55°C ~ 150°C

Mechanical Parameters (Must Match):

Package / Case: DO-204AL, DO-41, Axial
Mounting Type: Through Hole

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
Product Status: Active

The UG1D-E3/73 manufactured by Vishay General Semiconductor - Diodes Division meets all specified electrical and mechanical requirements and maintains equivalent compliance certifications.

Parameter Comparison

Parameter	SF14G-AP (Micro Commercial Co)	UG1D-E3/73 (Vishay)
Voltage - DC Reverse (Vr) (Max)	200 V	200 V
Current - Average Rectified (Io)	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 1 A	950 mV @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	35 ns	25 ns
Current - Reverse Leakage @ Vr	5 µA @ 200 V	5 µA @ 200 V
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Mounting Type	Through Hole	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tape & Box (TB)	Cut Tape (CT)

Engineering Selection Recommendations

The UG1D-E3/73 is a direct electrical and mechanical equivalent to the SF14G-AP. Both devices are Active product status and maintain ROHS3 compliance with REACH Unaffected status. The UG1D-E3/73 exhibits a lower reverse recovery time (25 ns versus 35 ns), which represents improved performance within the fast recovery classification. Both parts are rated for identical voltage, current, and temperature operating ranges.

Selection between these parts is determined by procurement availability, packaging format requirements (Tape & Box versus Cut Tape), and supplier inventory status. The electrical performance characteristics are equivalent for standard general-purpose rectification applications within the specified 200 V, 1 A operating envelope.

Frequently Asked Questions (FAQ)

Q: Can the UG1D-E3/73 be used as a direct replacement for the SF14G-AP in existing designs?

A: Yes. Both devices meet identical electrical specifications for voltage rating (200 V), current rating (1 A), forward voltage drop (950 mV @ 1 A), and operating temperature range (-55°C ~ 150°C). The through-hole DO-41 package is mechanically compatible. No circuit redesign is required.

Q: What is the difference in reverse recovery time between these parts?

A: The SF14G-AP has a reverse recovery time of 35 ns, while the UG1D-E3/73 has 25 ns. Both are classified as fast recovery diodes. The UG1D-E3/73 exhibits faster switching characteristics, which may provide marginal performance benefits in high-frequency switching applications, though both parts meet the fast recovery specification of ≤ 500 ns for currents > 200 mA.

Q: Are there packaging differences between these parts?

A: The SF14G-AP is supplied in Tape & Box (TB) format, while the UG1D-E3/73 is supplied in Cut Tape (CT) format. Both use the DO-41 package. Packaging format selection depends on assembly process requirements and volume handling procedures.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SF14G-AP and UG1D-E3/73 are ROHS3 compliant, REACH Unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080. Moisture Sensitivity Level is 1 (Unlimited) for both parts.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching: DC reverse voltage rating (200 V), average rectified current (1 A), forward voltage drop (950 mV @ 1 A), speed classification (fast recovery), reverse leakage current (5 µA @ 200 V), operating temperature range (-55°C ~ 150°C), package type (DO-41), mounting method (through hole), and compliance certifications (ROHS3).

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